# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

import unittest

import rustworkx


class TestAttributes(unittest.TestCase):
    def test_no_attrs(self):
        graph = rustworkx.PyDiGraph()
        self.assertIsNone(graph.attrs)

    def test_attrs_set_at_init(self):
        graph = rustworkx.PyDiGraph(attrs=dict(foo="bar"))
        self.assertEqual({"foo": "bar"}, graph.attrs)

    def test_attrs_set_at_init_override(self):
        graph = rustworkx.PyDiGraph(attrs=dict(foo="bar"))
        self.assertEqual({"foo": "bar"}, graph.attrs)
        graph.attrs = "ABC"
        self.assertEqual("ABC", graph.attrs)
